conn->want conversion: Fix fuse_apply_conn_info_opts()

fuse_apply_conn_info_opts() was applying to 'want_ext',
which would cause conflicts with 'want' if the application
applied its own flags to 'conn->want'.

Solution is:
    - to move fuse_{set,unset,get}_feature_flag and
      convert_to_conn_want_ext() to fuse_lowlevel.c and
      to define them as part of the public API, although
      convert_to_conn_want_ext() should not be used - it is
      currently needed to be a public function due as it needs
      to be defined for the tests.

Related to https://github.com/libfuse/libfuse/issues/1171 and
https://github.com/libfuse/libfuse/pull/1172.

Closes: https://github.com/libfuse/libfuse/issues/1171
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
(cherry picked from commit baadab0492a495fda98216b351976d2e5d6d0866)

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/util.h b/lib/util.h
index ed03ad4..f24401a 100644
--- a/lib/util.h
+++ b/lib/util.h
@@ -2,12 +2,15 @@
 #define FUSE_UTIL_H_
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #define ROUND_UP(val, round_to) (((val) + (round_to - 1)) & ~(round_to - 1))
 
 #define likely(x) __builtin_expect(!!(x), 1)
 #define unlikely(x) __builtin_expect(!!(x), 0)
 
+struct fuse_conn_info;
+
 int libfuse_strtol(const char *str, long *res);
 
 /**